Rotary motor.



H. .l. MATTERN.

ROTARY MOTOR.

APPLICATION FILED JUNE 8. I916- Patented Mar. 6, 1917.,

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ROTARY MOTOR.

APPLICATION FILED JUNE 8, 1916- '1,218,290. Pate t g 1 917.

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BOTARY Moron.

Specification of Letters Patent.

Patented Mar. 6, 1917.

Application filed June 8, 1916. Serial No. 102,397.

To all whom it may concern:

Be it known that I, HENRY J. MATTERN, 'a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Rotary Motors, of which the following is a specification.

h Iy invention relates to improvements in rotary motors and more particularly to a multi-blade motor adapted for operation by steam, water, or any other fluid under pressure.

One ofthe objects of my invention is to provide a rotary engine in which there shall be no reciprocating parts.

Another-object of my invention is to provide such a motor in which there shall be a minimum number of moving parts subject to very little frictional wear.

Another object of my invention is to provide such an engine in which a solid shaft may be used, the fluid admission and exhaust ports being positioned peripherally Fig. 2 is a fragmentary sectional vicw' on the line 22 of Fig. 1.

Fig. 3 is a longitudinal sectional view on the line 3-3 of Fig. 1; and

Fig. f is a fragmentary front elevation showing the cam controlling lever Referring to the drawings wherein I have illustrated the preferred embodiment of my invention the numeral indicates a cup shaped casing provided with a supporting base 11, and a head 12 for closing the front face of the casing and secured thereto by suitable means as the bolts 13. The interior of the casing is cylindrical except for an off-set port 14: into which leads the fluid supply pipe 15.

The rotating element of the motor comprises a pair of spaced apart disks 16 and 17, one of which is provided with axially extending webs 18, five in number and spaced apart to receive ,therebetween the five arcuate blades 19. The outer faces of the webs 18 arearcuate to conform to the curvature of the-lnner Wall of the casing 10, the blades being similarly curved so that when lying in their outermost position against the inner wall' of the casing 10, they form a continuous cylindrical surface with the webs 18. The disk 17 is secured to the projecting ends of the Webs 18 as by screws 20.

Each blade is pivotally mounted as at one end in a manner best illustrated in Fig. 2. One edge of each of the webs 18 is recessed near each side, as at 21, to receive the projecting arms 22 on the pivotal end of the blade 19, a' steel bolt 28 taking through the arms 22 and the tongue 24 formed in the web 18 between the recesses 21, thus providing an efficient pivotal connection, the bolt heads 25 being suitably countersunk in recesses 26 in the outer faces of the disk.

A cam for controlling the movement of the blades 19 is indicated in general by the numeral 27. The peak 28 of the cam is positioned approximately at the top of the motor, its forward face 29 quickly dropping from the peak 28 to the cylindrical portion 30 so as to permit rapid inward movement of the blades 19 upon their becoming subjected to the pressure within the steam port 14. In order to prevent the blades 19 moving past a radial position-I have cast shoulders 31 upon the inner-faces of each of the disks 16 and 17, the shoulders being curved to conformto the arcuate formation of the blade and extending generally radially so asto permit ablade to come into the position indicated by the blade 19 in Fig. 1.

An exhaust port 32 extends through the periphery of the casing '10 and communi- .cates with an exhaust pipe 33 to permit the exodus of the fluid from within the casing after its full power has been utilized by the rotor. At a point on the cam 27 beyond the exhaust port 32 I have provided a gradually rising surface 34: which insures positive outward movement of the blade. 19 into the position indicated by blade 19" in Fig. 1. The rear face 35 of the cam is cut away to reduce its weight since during this portion of the rotor travel the blades are not subjected to any fluid pressure and are, therefore, held outwardly by centrifugal force.

For the suitable mounting of the rotor I have provided a shaft 36 upon which is suitably fastened, as for example by means of the key 37, the hub 38, extending inwardly from the rotor disk 16. At the drive end of the shaft 36 a bearing is provided as at 89, in a hub extension i0 of the casing head 12, asuitably bolted on stuffing box 41, being provided. A pulley L2 or other suitable" means may be connected With the end of the shaft 36 for taking off power. In order to hold the cam 27 stationary I have provided a.laterally extending hub 43 thereon, which projects through the hub like bearing 4% in the wall of the cup shaped casing member 10. The shaft 36 is journaled within the hub l-S of the cam, a suitable bolted on stufling box being provided at the outer end of the hub 4:3 for engagement with the shaft. A bolted. on stufling box 46 is also provided on the hub 44c of the casing for engagement with the periphery of the cam hub 43 to prevent leakage of fluid through this end of the casing.

It is obvious that it may become desirable at certain times to vary the cam position and thus vary the point of steam admission. In order to permit such an adjustment, I have provided a cam controlling arm 47 secured to the hub d3 of the cam, as at 4:8. The outer end of the cam controlling arm 47 is provided with a handle d9 and a ratchet 50 for engagement with the teeth 51 on quadrant 52, one end of which is secured, as at 53, to a lug 54E, projecting from the casing 10. A pivoted latch handle 55 controls the movement of the latch 50, a coil spring 56 normally pressing the latch into engagement with the teeth 51 of the quadrant. The right hand end of the quadrant 52 or the end pointing in the direction of rotor movement is left open and unobstructed so that should it become necessary, as for example upon the disabling of the throttle valve, to quickly shut down the motor, this can be accomplished by releasing the latch 50 from the quadrant and swinging the cam about its axis until its peak 28 V has passed beyond the steam port 14.

WVhereas I have illustrated and described a particular embodiment of my invention it is obvious that various changes may be made therein without departing from the spirit and scope of the appended claims.

Having described my invention, what I claim is 1.. The combination in a rotary motor of a stationary casing having suitable inlet and exhaust ducts, a cage rotatable therein. and comprising opposite spaced apart disks, webs joining the disks near their peripheries, blades pivotally mounted in the disks between the webs and adapted to form when in their outermost position with the webs a cylindrical surface coacting with the inner surface of the casing, a blade controlling cam within the rotor, a shaft extending through the casing and upon which one of the disks is secured, a hub projecting from the cam through the casing and surrounding the shaft, and stationary means connected with the hub outside the casing for preventing rotary movement of the cam.

2. The combination in a rotary motor of stationary easing having suitable inlet and exhaust ducts, a cage rotatable therein and comprising opposite spaced apart disks, webs joining the disks near their peripheries, blades pivot-ally mounted in the disks between the webs and adapted to form when in their outermost position with the webs a cylindrical surface coacting with the inner surface of the casing, a blade con trolling cam within the rotor, a shaft extending through the casing and upon which one of the disks is secured, a hub projecting from the cam through the casing and surrounding the shaft, an arm projecting from said hub, a quadrant carried by the casing and a manually releasable latch member carried by the arm and arranged for engagement with the quadrant.

The combination in a rotary motor of a stationary casing having suitable inlet and exhaust ducts, a cage rotatable therein and comprising opposite spaced apart disks, webs joining the disks near their peripheries, blades pivotally mounted in the disks between the webs and adapted to form when in their outermost position with the webs a cylindrical surface coacting with the inner surface of the casing, a blade controlling cam within the rotor, a shaft extending through the casing and upon which one of the disks is secured, a hub projecting from the cam through the casing and surrounding the shaft, an arm projecting from said hub, a quadrant carried by the casing and a manually releasable latch member carried by the arm and arranged for engagement with the quadrant, the end of the quadrant in the direction of rotor movement being open to permit free movement of the lever therebeyond.

In testimony whereof I hereunto set my hand in the presence of two subscribing witnesses.

HENRY J. MATTERN. In the presence of STANLEY W. Coon, MARY F. ALLEN.

Copies of this patent maybe obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C. 

